Smelting options for carbon ferrochrome based on ore raw materials, middlings and their technological evaluation

S. Baysanov; Y. Shabanov; K. Grigorovich; R. Toleukadyr; I. Inkarbekova

doi:10.31643/2022/6445.06

Authors

S. Baysanov h. Abishev Chemical and Metallurgical Institute
Y. Shabanov Chemical and metallurgical Institute named after Zh. Abishev
K. Grigorovich A.A. Baykov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences
R. Toleukadyr Chemical and metallurgical Institute named after Zh. Abishev
I. Inkarbekova Chemical and metallurgical Institute named after Zh. Abishev

DOI:

https://doi.org/10.31643/2022/6445.06

Keywords:

ferroalloy, carbon ferrochrome, mono-charge, reducing agent, slag, briquette.

Abstract

The article presents the results of large-scale laboratory tests carried out in the conditions of the Chemical and Metallurgical Institute named after V.I. Zh. Abishev on the use of briquetted mono-charge in the smelting of carbon ferrochrome on a 250 kVA furnace. The purpose of these studies was to determine the technological parameters of the use of briquetted mono-charge containing in its composition chrome ore, wastes from the production of high-carbon ferrochrome, middlings and various carbonaceous reducing agents. The main idea of using these briquettes was to multiply the contact surface of the reductant and ore, which should speed up the technological process. The principal possibility of smelting a standard alloy using briquetted mono-charge is shown. The alloy for individual charge options meets the requirements of the standards. In comparison with the technology without the use of briquettes, the mono-charge technology has shown advantages in all main parameters. The technology with the use of briquettes from the dust of the AktZF gas cleaning system is distinguished by a low yield of non-standard metal and slag, the bulk of the material goes into the gas collection system. Technologies from briquettes from fines pellet production area of Donskoy ore mining and processing plant and flash have very low specific technical and economic indicators and cannot be recommended for industrial use. Improvement of briquetting modes and technology of their smelting is required. The technical and economic indicators were higher than the current one, showed briquettes from ore and coke of the People's Republic of China, briquettes of ore from borlin and shubarkol coals of Kazakhstan.

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Author Biographies

S. Baysanov , h. Abishev Chemical and Metallurgical Institute

Doctor of Technical Sciences, Professor, Head of the Laboratory of Metallurgical Melts

Y. Shabanov, Chemical and metallurgical Institute named after Zh. Abishev

PhD, associate professor, head of the laboratory "Ferroalloys and recovery processes"

K. Grigorovich, A.A. Baykov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences

Head of the Center for Collective Use of Scientific Equipment "Materials Diagnostics"

R. Toleukadyr , Chemical and metallurgical Institute named after Zh. Abishev

Junior researcher of the laboratory "Ferroalloys and recovery processes"

I. Inkarbekova, Chemical and metallurgical Institute named after Zh. Abishev

Engineer of the 1st category of the laboratory "Ferroalloys and recovery processes"

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